Calibration involves standardizing a measurement instrument to a known reference.

• A. Replacing the instrument
• B. Standardizing a measurement to a known reference
• C. Cleaning the instrument
• D. Adjusting the display

Answer: (B)

Calibration is about ensuring accuracy by aligning an instrument’s readings with a known reference. This means you compare the instrument’s measurements to a standard with a defined value, identify any discrepancy, and apply adjustments so future readings match the reference. This direct alignment to a reference is what the statement describes. It’s more than cleaning, replacing, or just changing the display—those actions affect maintenance or presentation, not the verified accuracy of measurements. By standardizing measurements to a known reference, calibration provides traceability and confidence in the data used for food safety decisions.